問題詳情

51. A 5.0 A current flows along a wire with 5c99cbb4933fc.jpgm. The wire resides in a uniform magnetic field5c99cbe56b8a1.jpgT. The magnetic force acting on the wire is described by 5c99cc06c1cd6.jpg

參考答案

答案:B
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)

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